Linearly Coupled Jeans Alfvén Modes in Self-Gravitating Astrophysical Dusty Plasmas

Details Linearly Coupled Jeans Alfvén Modes in Self-Gravitating Astrophysical Dusty Plasmas Linearly Coupled Jeans Alfvén Modes in Self-Gravitating Astrophysical Dusty Plasmas

Jan 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004phys...70..262j&link_type=abstract

Physica Scripta, Volume 70, Issue 4, pp. 262-264 (2004).

Astronomy and Astrophysics

Astrophysics

Scientific paper

The properties of dust-Alfvén waves in self-gravitating partially ionized astrophysical dusty magnetoplasmas are investigated. Accounting for the self-gravitational and inter-particle collisional effects in a hydrodynamic model of multi-species collisional plasmas, we derive a dispersion relation which exhibits a linear coupling between the modified Alfvén waves and Jeans modes. The influence of the electron density depletion on the growth rate of gravitationally unstable coupled Alfvén-Jeans modes is numerically investigated.

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